William schollhorn



(N-o Model.)

W. SGHOLLHORN.

COACH LATCH.

No. 346,318. Patented July 27, 1886.

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UNITED STATES PATENT OFFICE.

VILLIAM SCHOLLHORN, OF NEV HAVEN, CUNNECTIGUT, ASSIGNOR TO XVM.SCHOLLHORN & CO., OF SAME PLACE.

COACH-LATCH.

SPECIFICATION forming part of Letters Patent N'O. 346,318, dated July27, 1886.

SorialNo.184,87l. (No model.)

To all whom, it may concern.:

Be it known that I, XVILLIAM ScHoLLHoRN, of New Haven, in the county ofNew Haven and State of Connecticut, have invented a new 5 Improvement inCoach-Latchcs; and I do hereby declare the following,when taken inconnection with the accompanying drawing and the letters of referencemarked thereon, to be a full, clear, and exact description of the same,and which said drawing constitutes part of this specilcation andrepresents an inside view of said latch, part of the latch-bolt beingbroken away to show the bearing.

This invention relates to an improvement in 5 that class of latcheswhich are designed for carriage or coach doors, and commonly calledcoachlatches,7 and particularly to that class in which the bolt is drawnby a knob-like handle on the outside of the door, and upon o the insideby a lever which extends upward through the door and is adapted to bemoved in the plane of the door. This class oflatches are known to thetrade as Frech7 latches. In the more general construction of this classof latches the lever is hung in rear of the central line between the twoextremes of its movement, and the point of bearing on the bolt isstraight, thereby causing a sliding or rubbing of the parts, andproduces a friction at a point where lubrication is difficult.` Theobject of this invention ,is to avoid this difficulty; and it consistsin the construction as hereinafter described, and particularly recitedin the claim.

A represent-s the case of the latch; B, the latch-bolt, guided forlongitudinal movement by the face of the case and the guide c, and isconstructed in the usual manner to allow the lever to pass between itand the side of the case, and with a bearing, l), of segment shape thatis, convex in vertical section.

C is the lever extending downward through the case forward of thebearing I), and is pivoted at a point, d, substantially in a centrallille between the extreme points to which the lever may be moved. It isstraight from the pivot toapoiut above the latch-bolt. The bearing onthe latclrbolt being partially rounded permits the lever to work or rockover its sur face without rubbing and avoids the friction beforereferred to.

The latclrbolt is adapted to be operated by a knob-spindle which passesthrough a hub provided with a spring such as seen in Patent No. 186,074,January 9, 1877. The lever is best hung to the case by the stationarystud, as in Patent No. 814,611, March 31, 1885. The leveris providedwith a spring at its back, as in Patent No. 243,006, June 14, 1.881; butI make no claim in this application to the features found in the saidseveral patents.

From the foregoing it will. be understood that I am aware of theprevious construction as illustrated in United States Patent No. 258,291and No. 193,723,and do not wish to be understood as claiming anythingtherein shown or described; but

In a coach-latch, the combination ofthe case A, latclrbolt B, adapted tomove longitudinally in the case, and constructed with a segmentshapedbearing, b, the lever C, pivoted to the case below the bolt and in aline sub stantially central between the extremes of movement, andextending upward, forward of, and so as to work on the surface of saidbearing, and a spring to throw the bolt, substantially as described.

VILLIAM SCHOLLHORN.

Vitnesses:

ADOLF Sci-mz, EDWARD SIGEL.

